The current ipkg update doesn't seem to include miau although it is listed as being a supported package. The current version of miau in .ipk form is on sourceforge, so you'll need to download it to the router to install it. At an ssh prompt, change directory to /jffs and type:

Miau holds its settings in a config file called miaurc, which has a lot of options you can set, these are all explained here.

This is an example of a working config file, set to connect to efnet with the nickname mynick, accepting connections from any ip address. It is set to join #testchannel when it connects to the server, and to attempt to rejoin those channels whenever it re-connects.

Fill out the sample config listed above in a text editor on your computer, and when you are finished, right click in the SSH window and select "Paste". Note that the password variable is the password for the router's IRC bouncer, not for your IRC username. You do not set your IRC password in this config file.

Make sure that your ident is set to the same value as the username you set in miaurc or miau will reject the connection.

If you're connecting to the bouncer externally, it's probably a good idea to set the listenhost variable in miaurc to localhost, and tunnel the connection via SSH (how to do this in linux and in windows using PuTTY).